Wagon-jack



( NoModeh) I D. G. SWETT.

WAGON JACK.

No. 265,179. Patented S pL-ZG, 1882.

L in K UNITED STATES PATEN OFFICE.

DANIEL C. SWETT, OF BETHEL, MAINE.

" WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 265,179, datedSeptember 26, 1882.

' Application filed July 18, 1882. (No model.) V

To all whom it may concern .1

Be it known that I, DANIEL O. SWETT, of Bethel, in the county of Oxfordand State of Maine, have invented certain new and useful Improvements inWagon-Jacks; and I do hereby declare that. the following is a full,clear, and exact description of the invention, which will enable othersskilledin the art to which it appertains to make and use the same,reference being bad to the accompanying drawings, which form a part ofthis specification, and in which-.-

Figure 1 is a perspective view of my improved wagon-jack, and Fig. 2 isa side view of the same.

Similar letters of reference indicate corresponding parts in bothfigures.

My invention has relation to wagon-jacks; and it consists in theimproved construction and combination of parts of the same, ashereinafter more fully described and claimed.

1n the accompanying drawings, the letter A represents the base or sillof the jack. B B are the two uprights or standards, at the top of whichthe stepped lever O is pivoted. The standards B have holes b b for theinsertion of the bolt 0, so that the fulcrum of lever G may be raisedand lowered to suit wagons of any height of axle. At the other end leverO is pivoted to the arms D D, which again at the lower ends are pivotedto the lifting-lever F by bolt 01. The fulcrum-bolt g passes through thetwo short uprights G G and through the curved Orin-shaped slot f inlever F. This slot serves to change the fulcrum of lever F 3 5 byallowing it to be moved forward or backward, as it may be desired tomove thefulcrnm farther from or nearer to the bolt d. A notchedplate,B', is fastened to one of the uprights B, and serves to engagewith the free end of 40 the advantages and operation of my inventionwill be readily understood.

By using the stepped lever 0, connected with the lifting-lever F by armsI) D, I obtain a large leverage without requiring much room or greatlength of stroke.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States The combination, in alifting-jack,of the sill or base A, having the posts B B and short uprights G G,stepped lever O, adjustable fulcrum 0, arms D D, and lifting-lever F,slotted atf, andpivoted to the lower end of arms D by bolt 01, the wholeconstructed and combined to operate substantially in the manner

